Genetic Variant PRDM16:c.2603+6C>G (chr1-3412806-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022114.4(PRDM16):c.2603+6C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000772 in 1,296,022 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.7e-7 ( 0 hom. )

Consequence

PRDM16
NM_022114.4 splice_region, intron

Scores

Splicing: ADA: 0.00002182

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.363

Publications

0 publications found

Variant links:

Genes affected

PRDM16 (HGNC:14000): (PR/SET domain 16) The reciprocal translocation t(1;3)(p36;q21) occurs in a subset of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). This gene is located near the 1p36.3 breakpoint and has been shown to be specifically expressed in the t(1:3)(p36,q21)-positive MDS/AML. The protein encoded by this gene is a zinc finger transcription factor and contains an N-terminal PR domain. The translocation results in the overexpression of a truncated version of this protein that lacks the PR domain, which may play an important role in the pathogenesis of MDS and AML. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

PRDM16 Gene-Disease associations (from GenCC):

left ventricular noncompaction 8
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae)
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
left ventricular noncompaction
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

PRDM16 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRDM16	NM_022114.4 link	c.2603+6C>G		splice_region_variant, intron_variant	Intron 9 of 16	ENST00000270722.10	NP_071397.3	Q9HAZ2-1
PRDM16	NM_199454.3 link	c.2603+6C>G		splice_region_variant, intron_variant	Intron 9 of 16		NP_955533.2	Q9HAZ2-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRDM16	ENST00000270722.10 link	c.2603+6C>G		splice_region_variant, intron_variant	Intron 9 of 16	1	NM_022114.4	ENSP00000270722.5		Q9HAZ2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.72e-7

AC:

AN:

1296022

Hom.:

Cov.:

AF XY:

0.00000159

AC XY:

AN XY:

629064

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26926

American (AMR)

AF:

0.00

AC:

AN:

20714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18662

East Asian (EAS)

AF:

0.00

AC:

AN:

33392

South Asian (SAS)

AF:

0.00

AC:

AN:

62872

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42316

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5190

European-Non Finnish (NFE)

AF:

9.69e-7

AC:

AN:

1032516

Other (OTH)

AF:

0.00

AC:

AN:

53434

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

1.8

(source)

DANN

Benign

0.61

PhyloP100

0.36

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000022

dbscSNV1_RF

Benign

0.0060

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over